I just noticed a tapping noise that comes on at around 3000rpm and is only there when you are pressing the accelerator. I think it may be a loose valve rocker arm as I did a valve adjustment a few months ago and it may have loosened up. I am hoping it is not "rod knock" or a spun bearing as its not that loud but an annoying tapping very quickly.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Stealth1 &raquo;</TD></TR><TR><TD CLASS="quote">I just noticed a tapping noise that comes on at around 3000rpm and is only there when you are pressing the accelerator. I think it may be a loose valve rocker arm as I did a valve adjustment a few months ago and it may have loosened up. I am hoping it is not "rod knock" or a spun bearing as its not that loud but an annoying tapping very quickly.</TD></TR></TABLE>If this is a b16 head most likely its the lma's.

 

B18b1 engine

 

well, my mechanic seems to be certain its a bearing. Only happens when you are on the throttle and its most apparent at 3000rpm. Looks like I might have to pull this bad boy and rebuild with new bearings and drop in a B20b.